Side bearing for railway-cars.



. Patented Mar. 4, |902. F. BfCORNWALL. SIDE BEARING FOR RAILWAY GARS.

(Application led Nov. 19. 1901.)

(No Model.)

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NITED STATES d PATENT OFFICE.

FREDERICK R. CORNWALL, OE sr. LOUIS, MISSOURI, ASSIGNOR 'ro CHICAGO RAILWAY EQUIPMENT COMPANY, OE CHICAGO, ILLINOIS, A CORPORA- TION OF ILLINOIS.

SIDE BEARING Foa RAILWAY-CARS.

SPECIFICATION forming part of Letters Patent N0. $974,461, dated March 4., 1902. Application filed November 19, 1901. Serial No. 82,900. (No model.)

To cI/.ZZ whom, it Wtay concern:

Be it known that I, FREDERICK R. CORN- WALL, a citizen of the United States, residing in the city of St. Louis, State of Missouri, have invented a certain new and useful Improvement in Side-Bearings for Railway-Cars, of which the following is a full, clear, and exact description, such'as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is a top plan view of my improved side bearing. Fig. 2` is an end elevational View, one end being lshown in vertical section. Fig. Bisan end elevational View. Fig.

4 is a vertical cross-sectional view. Fig. 5 is a plan view of a modified form; and Fig. 6 is an elevational view of said modified form, one end thereof being shown in section.V

This invention relates to a new and useful improvement in side-bearings for railway-cars, the object being to construct a deviceV of the character described in a simple and cheap manner. Another object is to provide means for restoring the antifriction devices to a normal or central position, said restoring means be-A ing contained Within the said bearing proper, and another obj ect is to utilize the movement of the antifriction devices in a reverse direction to store power in a restoring medium.

With these objects in View my invention consists in thev construction, arrangement, and combination of the several parts, all as will hereinafter be described, and afterward pointed out in the-claims.

In the drawings, l indicates a casting provided With the usual lugs forattac'hment to a bolster. This casting is'provided with a continuous groove or way 2, one portion of which is open at its top and through which antifriction devices in the form of balls 3 protrude. The bottom of this Way is formed by a hard-metal track plate or bar 4t. The upper edges of this groove extend inwardly toward each other to confine the antifrictionballs in position. The ends of the Way may or may not be inclined, but Ihave shown them balls, preferably of the same size as those on the elevated way, in which are arranged the exposed balls. It will be noted that the balls in the inclined way are partially housed and that the ends ofthe casting are cut away, as at 6, in order to permit dirt, cinders, Water, dac., to escape.

7 indicates What I will term for the sake of distinction the bottom way, which is preferably larger than the top way, said bottom way being Open at its top in order to introduce the antifriction-balls and todrop into position the spring-followers 8 and their interposed spring 9. A cap or cover l0 is arranged to close this way. Instead of having the bottom way larger than the top Way said bottom way may be of the same size as the top Way; but whether largerI or of the same size shoulders ll must be provided to arrest the outward movement of the spring-followers. These spring-followers (shown in Fig. 2) are in the form of castings with centeringteats for the spring, while in Fig. 6 they are in the form of balls of larger diameter, (indicated at 8a.) Y

In operation the device being assembled as shown in the drawings, the side bearing is attached in position on the bolster. The Way in which are located the antifriction-balls is preferably curved concentric to the king-pin of the truck. Whenever the bearing-plate on the body-bolster contacts withthe antifriction devices in the form of exposed balls, said balls are moved in their Way in either direction, as the case may be, forcing the follower in advance of the active ball at the end of the row to move inwardly, compressing the spring and storing up power in said spring to restore the antifriction devices to their normal position immediately upon being relieved from the load. It follows that these antifriction-balls will be responsive to the movementv of 'the bearing on the body-bolster in yeither direction, that the active spring-follower Will be moved in a direction oppositethe direction of movement of the burden-carrying balls, vthat the receding spring-follower will permit the active balls to house themselves in the spring-housing, and that as soon as the burden-carryin g balls are relieved from their load the spring exerts its energy to force the balls around to their normal position, which is determined by the balls contacting with each other or by the spring-followers contacting with their xed abutments.

I am aware that many minor changes in the construction, arrangement, and combination of the several parts of my device can be made and substituted for those herein shown and described without in the least departing from the nature and principle of my invention.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is-

1. In a side bearing for cars, the combination with an antifriction device, and a restoring medium actuated in a direction opposite to the movement of the antifriction device in service; substantially as described.

2. In a side bearing for cars, the combination with an antifriction device, of resilient means for restoring said antifriction device, and means between said antifriction device and said restoring means for reversing the movement of the former to store up power in the latter; substantially as described.

3. In a side bearing for cars, the combination with a series of antifriction devices, of a restoring 'medium therefor, and means fo'r storing power in said medium in a direction opposite the movement of any of the antifriction devices in service; substantially as described.

4. In a side bearing for cars, the combination with a row of balls, of resilient means for restoring said balls to their normal position, and means operated by the end balls of the row for storing up power in said restoring medium in a direction opposite the movement of the balls of the row in service; substantially as described.

5. In a side bearing for cars, the combination with a row of balls, of a compressionspring for restoring the same to a normal position, the end balls of the row cooperating with said compression-spring; substantially as described.

6. In a side bearing for cars, the combination with a row of balls, of spring-followers against which the end balls are seated, and a springinterposed between said followers; substantially as described.

7. In a side bearing for cars, the combination with a casting formed with an endless way, of balls in a portion of said way, and a restoring-spring in another portion of said way; substantially as described.

8. In a side bearing for cars, the combination with a casting formed with a continuous way, abutments or stops in said way, springfollowers cooperating with said abutments, a spring interposed between said followers, and

a row of balls coperatin g with the said springfollowers; substantially as described.

9. In a side bearing for cars, the combination with a casting having a continuous way, of dierent areas, a row of balls in the way of smaller area, and a restoring-springforsaid balls in that portion of the way which is of larger area; substantially as described.

10. In a side bearing for cars, the combination with a casting formed with a top way, a bottom way, and inclined end ways, of balls in said top and inclined ways, and a restoring-spring' in the bottom way; substantially as described.

1l. In a side bearing for cars, the combination with a casting having an endless way, of a row of exposed balls in a portion of said way, a restoring-spring in another portion of said way, and a housing for said restoringspring; substantially as described.

12. In a side bearing for cars, the combination with a casting formed with an endless way, said way forming in part a ball-race, and in part a spring-housing, balls in said race, and a spring in said housing; substantially as described.

13. In a side bearing for cars, the combination with a casting formed with a continuous Way, of balls arranged in a portion of said way, means for confining said balls lin position in said way, abutments in said way, springfollowers cooperating With said abutments, a spring interposed between said followers, and a cover-plate for housing in said spring and its followers; substantially as described.

14. In a side bearing for cars, the combination with a casting having a continuous way of differential areas, of a row of balls arranged in said way, the end balls of said row being of relatively larger diameter and co )erating with shoulders in the way whereby said balls of larger diameter serve as spring-followers, and an expansion-spring interposed between said balls of larger' diameter; substantially as described.

15. In a side bearing for cars, the combination with a casting formed with a continuous way, a track-plate in a portion of said way, a row of balls in said way which is supported in part by said track-plate, said casting having inwardly-extending lips to confine said balls in position, spring-followers coperating with the balls at the ends of said row, a spring interposed between said followers, and a covering for said spring; substantially as described.

In testimony whereof I hereunto affix my signature, in the presence of two witnesses, this 15th day of November, 1901.

FREDERICK R. CORNWALL.

Witnesses:

GEORGE BAKEWELL, GALEs P. MOORE.

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